feat: add test file

Signed-off-by: Xinwei Xiong(cubxxw-openim) <3293172751nss@gmail.com>

.github/workflows/build-docker-image.yml

@@ -0,0 +1,36 @@
+name: OpenIM Build Docker Images
+on:
+  push:
+    tags:
+      - v*
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        bin:
+          - ssserver
+          - sslocal
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Docker metadata
+        id: metadata
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ github.repository_owner }}/openim-${{ matrix.bin }}
+      - name: Build and release Docker images
+        uses: docker/build-push-action@v3
+        with:
+          platforms: linux/386,linux/amd64,linux/arm64/v8
+          target: ${{ matrix.bin }}
+          tags: ${{ steps.metadata.outputs.tags }}
+          push: true